The definition of chastity is 'to refrain from sexual activity'. However, the chastity tag is about 50% males with chastity_cages taking it up the butt, which does not comply with the chastity definition. As a matter of fact, I can not imagine any scenario where chastity can be tagged according to TWYS. chastity_device, however, is something that can be tagged based on visuals, and is pretty much the current use of chastity anyway. I also can't imagine the cleanup being very substantial. (most likely a few 'can't cum for -ERROR- days' and the like)

So
Un-alias chastity_device -> chastity_cage (which is dumb anyway, it can be a chastity_belt)

Alias
chastity -> chastity_device

Implicate

chastity_cage -> chastity_device
chastity_belt -> chastity_device
chastity_piercing -> chastity_device